Location History:
- Jiangsu, CN (2012)
- Shanghai, CN (2016)
Company Filing History:
Years Active: 2012-2016
Title: Innovations in Papermaking by Qing Long Rao
Introduction
Qing Long Rao is an accomplished inventor based in Shanghai, China. He has made significant contributions to the field of papermaking, particularly in enhancing the strength and quality of paper products. With a total of 2 patents, his work focuses on innovative methods that utilize cost-effective materials without compromising quality.
Latest Patents
One of his latest patents is titled "Furnish pretreatment to improve paper strength aid performance in papermaking." This invention outlines a method that increases the strength of paper made from a furnish containing a large proportion of old corrugated containers (OCC). The process involves several steps: first, providing a paper furnish rich in OCC; second, adding a strength promoter before introducing a strength agent; third, incorporating the strength agent; and finally, producing a paper product from the furnish. This method allows for the effective use of inexpensive OCC materials while mitigating the quality issues typically associated with anionic trash in OCC. As a result, it enables the production of high-quality paper products at lower costs.
Another notable patent is the "Method of increasing filler content in papermaking." This invention presents a technique for producing paper with a higher proportion of mineral filler particles without the usual loss in paper strength. The method involves coating some filler particles with a material that prevents them from adhering to a strength additive. This ensures that the strength additive effectively binds the cellulose fibers together, maximizing its utility. The method is particularly effective when using a blend of precipitated calcium carbonate (PCC) and ground calcium carbonate (GCC) particles, especially when the GCC particles are coated to prevent adherence.
Career Highlights
Qing Long Rao is currently employed at Nalco Company, where he continues to innovate in the field of papermaking. His work has garnered attention for its practical applications and cost-saving potential in the industry.
Collaborations
He collaborates with talented colleagues, including Weiguo Cheng and Yulin Zhao, who contribute to the advancement of their projects and research initiatives.
Conclusion
Qing Long Rao's innovative patents and methods are paving the way for advancements in the papermaking industry. His focus on utilizing cost-effective materials while maintaining high quality is a testament to his expertise and dedication to innovation.